<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
  <p v-if="show">text</p>
</div>

<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<script>
  var app = new Vue({
    el:'#app',
    data:{
      show:true
    }
  })
</script>
</body>
</html>